Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
- Triple validation: technical, pedagogical, sectoral.
- Minimum rating 4.8/5 over the last 12 sessions.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.
1 seat held for the next session
Request a call back and an advisor reaches you within 24 business hours, Monday to Saturday.

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.
Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.
Don't let this gap widen
Without expert mastery of John the Ripper to audit passwords, 81 % of data breaches exploit undetected weaknesses, according to the Verizon DBIR report.
A company suffers an average of 4,45 millions d'euros in losses per incident linked to compromised passwords, without effective audits to identify them.
Pentesters and system administrators expose their careers to failing audits and legal liabilities, while the company risks operational paralysis.
Each month without this expertise, vulnerabilities accumulate, turning a minor flaw into a major catastrophe.
Introduction to password security, history of John the Ripper, overview of common hash algorithms (MD5, SHA-1, bcrypt, NTLM). Installation on different environments (Linux, Windows), command line basics, preparation of hash files for audit.
Exploration of attack modes (dictionary, incremental attack, brute force, hybrid tips). Use and creation of effective wordlists, advanced rules configuration, strategy adaptation to targets. Attack scenarios on Linux and Windows systems. Performance analysis and complementary tools (John Jumbo, Python scripts, specialized modules).
Script creation to automate password audits on complex infrastructures. Integration with orchestration tools (e.g., Ansible, bash scripting). Results interpretation, professional report writing, remediation proposals, and best practices for strengthening enterprise password cybersecurity.
The Training: Learn John the Ripper - Expert in Password Audit and Security program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.
The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.
For the smooth delivery of the Training: Learn John the Ripper - Expert in Password Audit and Security program, the following equipment is required:
For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.
Assessment of skills acquired during the Training: Learn John the Ripper - Expert in Password Audit and Security program is performed through:
Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.
Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.
Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
Security standards & governanceIndustry-certified
Backend & APIsIndustry-certified
Pentesting & ethical hackingIndustry-certified
Blockchain & Web3Industry-certified
Pentesting & ethical hackingIndustry-certified
Pentesting & ethical hackingIndustry-certified
Pentesting & ethical hackingIndustry-certified
Pentesting & ethical hackingIndustry-certified
Pentesting & ethical hackingIndustry-certified
Pentesting & ethical hackingIndustry-certified
Security standards & governanceIndustry-certified
Security standards & governanceIndustry-certified
Security standards & governanceIndustry-certified
Security standards & governanceIndustry-certified
Security standards & governanceIndustry-certified
Security standards & governanceIndustry-certified
GDPR & digital lawIndustry-certified
GDPR & digital lawIndustry-certified
GDPR & digital lawIndustry-certified
GDPR & digital lawIndustry-certified
GDPR & digital lawIndustry-certified
GDPR & digital lawIndustry-certified
Networking & telecomsIndustry-certified
Networking & telecomsIndustry-certified
Networking & telecomsIndustry-certified
Networking & telecomsIndustry-certified
Networking & telecomsIndustry-certified
Networking & telecomsIndustry-certifiedAvailable on-site and remotely. Pick your city to see the local training center.
30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.